If you're reading in a different language, try readlang (I'm not an owner, just a happy user.) It's a browser plugin that does 2 things: (1) inline translation

If you're reading in a different language, try readlang (I'm not an owner, just a happy user.) It's a browser plugin that does 2 things: (1) inline translation, including of phrases, so reading becomes much much less painful; and (2) every word or phrase you look up, it saves as a flash card for you to review. It's well worth the $5/month.